Associations between Specific Redox Biomarkers and Age in a Large European Cohort: The MARK-AGE Project

Daniela Weber, Wolfgang Stuetz, Olivier Toussaint, Florence Debacq-Chainiaux, Martijn Dollé, Eugène Jansen, Efstathios S. Gonos, Claudio Franceschi, Ewa Sikora, Antti Hervonen, Nicole Breusing, Thilo Sindlinger, María Moreno-Villanueva, Alexander Bürkle, Tilman Grune

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Oxidative stress and antioxidants play a role in age-related diseases and in the aging process. We here present data on protein carbonyls, 3-nitrotyrosine, malondialdehyde, and cellular and plasma antioxidants (glutathione, cysteine, ascorbic acid, uric acid, α-tocopherol, and lycopene) and their relation with age in the European multicenter study MARK-AGE. To avoid confounding, only data from countries which recruited subjects from all three study groups (five of eight centers) and only participants aged ≥55 years were selected resulting in data from 1559 participants. These included subjects from (1) the general population, (2) members from long-living families, and (3) their spouses. In addition, 683 middle-aged reference participants (35–54 years) served as a control. After adjustment for age, BMI, smoking status, gender, and country, there were differences in protein carbonyls, malondialdehyde, 3-nitrotyrosine, α-tocopherol, cysteine, and glutathione between the 3 study groups. Protein carbonyls and 3-nitrotyrosine as well as cysteine, uric acid, and lycopene were identified as independent biomarkers with the highest correlation with age. Interestingly, from all antioxidants measured, only lycopene was lower in all aged groups and from the oxidative stress biomarkers, only 3-nitrotyrosine was increased in the descendants from long-living families compared to the middle-aged control group. We conclude that both lifestyle and genetics may be important contributors to redox biomarkers in an aging population.
langue originaleAnglais
Numéro d'article1401452
Pages (de - à)1401452
journalOxidative Medicine and Cellular Longevity
Les DOIs
Etat de la publicationPublié - 2017

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